Reinforced truck-bolster end member.



W. S. ATWOOD.

RBINFORGED TRUCK BOLSTBR END MEMBERL APPLICATION FILED APB.. 10, 1914. 1,123,214, Patented Jan 5,1915.

UNITED STATES PATENT OFFICE.

WILLIAM S. ATWOOD, OF MONTREAL, QUEBEC, CANADA, ASSIGNOR TO CANADIAN CAR & FOUNDRY COMPANY, LIMITED, OF

MONTREAL, CANADA.

REINFORCED TRUCK-BOLSTER END MEMBER.

Specification of Letters Patent.

Patented J an. 5, 1915.`

Application filed April 10, 1914. Serial No. 830,950.

To all whom 'it may concern:

Be it known that I, WILLIAM S. A'rwoon, a subject of the King of Great Britain, and resident of the city of Montreal, in the Province of Quebec and Dominion of Canada, have invented certain new and useful Improvements in Reinforced Truck-Bolster End Members, of which the following is a full, celar, and eXact description.

This invention relates to improvements in truck bolster end members, and the object is to provide renewable wearing surfaces at the points where the end members engage the truck columns.

At the present time, the truck bolsters are provided with an end member usually in the form of a casting which has slidable engagement with the side frame of the truck. When the car is running, there is constant movement under considerable stress at this point, so that considerable wear occurs. In some forms of truck the bolster end member is a single large casting, which when worn must be replaced.

The object of this invention is to provide this end casting with removable plates which take the wear at the point of engagement with the side frame, so that only a comparatively small loss will be experienced.v

Furthermore, a new plate may be inserted without disconnecting the bolster and end member, so that considerable economy is effected.

In the drawings which illustrate the inventionz-Figure 1 is a side elevation of the bolster end member showing the removable plate. Fig. 2 is a half plan view of Fig. 1. Fig. 3 is a'view similar to Fig. 4, showing a slightly modified form. Fig. 4 is a half plan View of such modified form partly in section on the line 4-4, Fig. 3. Fig. 5 is a fragmentary verticaly section on the line 5-5, Figs. 1 or 3.

Referring more particularly to the drawings, 11 designates the bolster end member secured to the bolster 12. This end member is provided with vertical side plates 13, each having on the outer surface thereof a pair of vertical flanges 14 grooved on their adjacent sides for the reception of a plate 15, preferably of steel. This plate is provided on its upper and lower edges-with tongues 16 which are turned over the upper and lower edges of the side plate 13 to hold the wearing plate 15 against vertical movement.

In the modified form shown in Figs. 3 and 4, only one grooved flange 14 is provided, the other iiange being replaced by an aperture 17 formed in the side plate 13.

The wearing plate 15 is provided opposite the opening 17 with a tongue 18, which may be bent inwardly through the opening, so that the edge of the tongue abuts the edge 19 of the opening remote from the grooved flange 14, and holds the plate against movement out of the flange.

A small extension 20 of the opening 17 may be provided for the introduction of a tool to pry out the tongue 18 in removing the plate. In this form, the plate instead of having merely tongues turned over at top and bottom, has its entire upper and lower edges bent over the side plates of the end member, as shown at 16a.

From the foregoing description, it will be -readily seen that the steel wearing plates are comparatively small, and may be replaced When worn out at comparatively 'little expense without the necessity of discarding the entire casting, and also without the necessity of removing the end casting from the bolster. In addition to saving of material and prolonging of life of the bolster, there will be considerable saving of time in renewing the worn members, for the reason that the plates 15 may be replaced much more quickly than the entire casting. These end members are usually malleable castings, and therefore quite soft and subject to rapid wear. The size of the casting prohibits the use of more eX- pensive steel. This invention provides the hard wear-resisting steel only at the points where it is needed, thus permitting the large casting to be made of the cheaper and softer material.

Having thus described my invention, what I claim is 1. In a truck bolster end member, vertically disposed flanges grooved on their adjacent sides, a thin plate inserted in the grooves of said flanges covering the bearing portions of said member, and tongues on said plate foldable over the end member to rigidly attach the plate thereto.

2. In a truck plates, a pair of vertically disposed flanges bolster end member, side plates,

on each of said 4side plates,A Isaidl flanges being grooved on adjacent faces, a` plate of material harder than,V the side i i 'ser'ted in the groovesl of said flanges, and eX- tensions of said plate folded over the up'- per and lower edges of .the .side plate. and holding said hard plate.

.3. In a truck bolster end member,side a separate" Wearing plate ovei' each of said side plates, means carried by the side plates holding said Wearingl plates against plates inmovement in one direction, andi means carred by the Wearing plates engaging the side plates and holding the Wearing A plates against `movement in another'direction;

In Witnesswhereof, I have `hereuntoset my handin vthe presence of two Witnesses.

WILLIAM S. ATWOOD.

` Witnesses;

SR. VALLEN, G. M. MORELAND.

Copies of this patent may be obtained for ve cents each, by'addressng thev Gomm'is-sioneiof Patents. y Washington, D. C. 

